//按照成绩输出百分之分数段
#include<stdio.h>
int main(){
	char grade;
	scanf("%c",&grade);
	printf("Your score:");
	switch(grade){
		case 'A':printf("85~100\n");
	    break;
	    case 'B':printf("70~84\n");
	    break;
	    case 'C':printf("60~69\n");
	    break;
	    case 'D':printf("<60\n");
	    break;
	    default:printf("enter data error!\n");
	}
	return 0;
} 
